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Can now read a chain ID from the swap sub coin config

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This commit is contained in:
Alexandre Paillier
2024-02-08 15:10:59 +01:00
parent c84794b257
commit 62d8b327d6
4 changed files with 46 additions and 22 deletions
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24
src/swap_utils.c
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@@ -22,22 +22,38 @@
#include "asset_info.h"
#include "swap_utils.h"
bool parse_swap_config(const uint8_t *config, uint8_t config_len, char *ticker, uint8_t *decimals) {
bool parse_swap_config(const uint8_t *config,
uint8_t config_len,
char *ticker,
uint8_t *decimals,
uint64_t *chain_id) {
uint8_t ticker_len, offset = 0;
if (config_len == 0) {
return false;
}
ticker_len = config[offset++];
if (ticker_len == 0 || ticker_len > MAX_TICKER_LEN - 2 || config_len - offset < ticker_len) {
ticker_len = config[offset];
offset += sizeof(ticker_len);
if ((ticker_len == 0) || (ticker_len > (MAX_TICKER_LEN - 2)) ||
((config_len - offset) < (ticker_len))) {
return false;
}
memcpy(ticker, config + offset, ticker_len);
offset += ticker_len;
ticker[ticker_len] = '\0';
if (config_len - offset < 1) {
if ((config_len - offset) < 1) {
return false;
}
*decimals = config[offset];
offset += sizeof(*decimals);
// the chain ID was adder later to the CAL swap subconfig
// so it is optional for retro-compatibility (as it might not be present)
if ((config_len - offset) >= sizeof(*chain_id)) {
PRINTF("Chain ID from the swap subconfig = 0x%.*h\n", sizeof(*chain_id), &config[offset]);
*chain_id = u64_from_BE(config + offset, sizeof(*chain_id));
offset += sizeof(*chain_id);
}
return true;
}